policy and this was frankly a disaster for the united states and a terrible tragedy so they see this as a way to criticize some of the president's policies in the region. >> brown: steven lee myers, daniel byman, thank you so much. >> thank you. >> woodruff: now to our american graduate series on the high school dropout problem. tonight, we explore the pressures on a public school system in a city that's unexpectedly benefiting from economic good times. ray suarez has our story from north dakota. >> reporter: there is no better economic view in the u.s. than the one seen from above williston, north dakota. a rapidly expanding oil boom has taken root below, bringing with it widespread prosperity and an unemployment rate that sits at just 1%. this city's fortunes are in stark contrast to most of the nation. real estate is profitable. blue collar jobs are abundant. and much of the globe, including asia, the middle east and europe, is investing in the local economy. but as opportunities and new residents pour in, it is clear that williston, home to 12 thousand people just a few years ago